Fragmentation of meso-Tetraphenyl iron(III) porphyrin chloride (FeTPPCl) in collisions with Kr8+ ions

B. Li (1, 2) , G. Gutierrez (1) , L. Chen (1) , R. Brédy (1) , J. Bernard (1) , G. Montagne (1) , X. Ma (2) , Virgile Bernigaud (3) , Bruno Manil (3) , Laurent Maunoury (3) , Bernd A. Huber (3) , S. Martin (1)

1 LASIM - Laboratoire de Spectrométrie Ionique et Moléculaire
2 Institute of Modern Physics
3 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique

Fragmentation of FeTPPCI (C44H28N4FeCl) induced by Kr8+ impact at 80 keV has been investigated. Fragmentation schemes have been studied for different charge states of parent ions (r=1-3). The dominant low-energy-cost fragmentation channel is the emission of neutral chlorine independently to the charge of the molecule. For the monocharged FeTPPCI parent ions, a minor channel corresponding to the emission of a chlorine anion is observed with a measured rate of about 3% ± 1%. For the dication molecule, the evaporation of a neutral phenyl molecule is the dominant channel, whereas for the trication molecule the dominant channel is the asymmetrical fission by emission of a charged phenyl. These processes are discussed in terms of charge distribution of the molecule.

Domaines: Physique Atomique [physics.atom-ph]

B. Li, G. Gutierrez, L. Chen, R. Brédy, J. Bernard, et al.. Fragmentation of meso-Tetraphenyl iron(III) porphyrin chloride (FeTPPCl) in collisions with Kr8+ ions. 14th International Conference on the Physics of Highly Charged Ions (HCI 2008), 2008, France. pp.012077. ⟨hal-00483895⟩